Mop-wringer



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MOP WRINGER.

No. 549,104. Patented Nov. 5, 1895.

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m mm Rm m B MM Am M M m Patented Nov. 5, 1895.

. ANDRLW EGRANAM. PHOTOUTMQWASHING'DNJL UNITED STATES PATENT OFFICE.

ARTHUR M. BURNI-IAM, OF GARDINER, MAINE, ASSIGNOR OF ONE-HALF TO LEONARDMOODY, OF BROOKLYN, NElV YORK.

MOP-WRINGER.

SPECIFICATION forming part of Letters Patent No. 549,104, dated November5, 1895. Application filed February 20, 1895. serial No. 539,082. (Nomodel.)

To all whom it may concern.-

Be it known that I, ARTHUR M. 'BURNHAM, a resident of Gardiner, in thecounty of Kennebec and State of Maine, have invented certain new anduseful Improvements in Mop- XVringers; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in mop-wringers, and moreparticularly to such as are adapted to squeeze the mop, one object ofthe invention being to so construct a mop- Wringer that it will notinjuriously affect the mop, as is the case with mop-wringers employingrollers.

A further object is to so construct devices for wringing a mop that thecompressor will be made to travel the major portion of its movement withthe expenditure of a comparatively small amount of treadle-power andexert a maximum amount of pressure on the mop when the movement of thetreadle shall have been nearly completed.

A further object is to provide means whereby a mop-wringer can beadjusted for different-sized mops.

A further object is to produce a mopwringer which shall be simple inconstruction, comparatively cheap to manufacture, and which shall beeffectual in all respects in the performance of its functions.

WVith these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, ashereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view. Fig. 2 is avertical longitudinal sectional'view. Fig. 3 is a plan view. Fig. 4 is aview of a modification.

A represents a pail, preferably made angular in form with the upperedges of the sides rounded. Within the pail A a curved compressor-plateB, having a number of perforations a, is pivotally supported bymeans ofa shaft I, mounted at its respective ends in the sides of the pail, thepivoted end of said plate being curved, as at b, concentric with theshaft 1. The compressor-plate B is adapted to act in conjunction with afixed perforated plate 0 and with a sliding spring-sustained plate D topress or squeeze the water from a mop disposed between them, the shankof said mop being made of such form as to enter a slot 0, so as topermit the compressor-plate to engage the sliding plate and contract thespace occupied by the mop. The plate 0 is secured betweenthe sides ofthe pail, so that its lower edge will be disposed in close prox- 4 imityto the curved portion 1) of the compressor B. The sliding plate D ismade slightly curved and adapted to slide past and in close proximity tothe upper edge of the fixed plate 0. A bar cl is secured transversely tothe plate D near its upper edge and projects beyond the edges of saidplate to produce lugs e, which enter curved elongated slots f in thesides of the pail, and any water which may find its way through theseslots will be caught by small troughs g, secured to the sides of thepail, and by said troughs be reconveyed to the interior of the pailthrough the slots. The sliding plate D is also guided in its movementsby means of curved guides h, secured to the sides of the pail. Saidsliding plate is maintained in its normal position by means of a springD, secured at one end to the bottom of the plate and at the other end tothe upper edge of the pail.

The arms 'iof a treadlej are pivotally connected to the pail and betweentheir ends are bent and provided with journals 70 for the reception ofrollers 70'. The shaft Z, to which the compressor-plate is secured,projects at both ends' beyond the sides of the pail and at itsextremities is provided with fixed arms m, made at their ends withsegments m, having teeth m Between the arms on and the pail levers n areloosely mounted on the shaft Z, and each lever is provided with aperforated lug 0 for the reception of a thumb-screw p, by which tosecure a block 1) thereto, said blockfhav ing teeth 19 to engage theteeth m on the segments m. I

If desired, the teeth 1%? of the segments may be made in the. form ofratchet-teeth and the toothed blocks displaced by dogs p maintainednormally in contact with the teeth by means of a spring 10 as shown inFig. 4. The levers n are curved and constitute a track on which therollers 76 run, so

that when the treadle is depressed the levers n will be moved down andthe shaft Zturned, carrying the compressor-plate B upwardly andcompressing the mop between it and the plates 0 D, the water in the mopescaping through the perforations in said plates. A continued pressureon the treadle will cause the compressor to bear on the sliding plate Dwith such pressure as to cause the latter to move downwardly, thuscontracting the space occupied by the mop and thoroughly wringing thewater from the same. As soon as the treadle is released, the spring Dwill return the sliding plate D to its normal position, and thecompressor-plate B will fall by its own weight to its normal position inthe bottom of the pail.

It will be observed that the levers n are so made that in proximity totheir inner ends, where they are connected to the shaft Z, theircurvature is somewhat abrupt, as at 9 and that the curvature from thepart 19 toward the free ends of the levers is of a less degree. It willbe seen, therefore, that when the treadle is first depressed thecompressor-plate will be moved quickly (and with little exertion on thepart of the operator) toward the plates 0 D, and that when theresistance offered by the mop is encountered the rollers on thetreadlearms will be 011 the long curve 19 of the lever and some distancefrom the fulcrum of the latter. As the pressure on the treadle c011-tinues the connection between the treadle and levers n moves away fromthe fulcrum of the latter, and the leverage on the compressorplateincreases until the maximum amount of pressure on the mop is attained,when the treadle will be in proximity to the base of the pail.

In the use of mop-wringers of the class to which my invention relates,as they have heretofore been constructed, it has been necessary towithdraw the mop from the water in the pail and then place it in thewringing or squeezing device. \Vith my improved construction it is notnecessary to withdraw the mop, but merely to raise it slightly, and thusthe inconvenience of wholly withdrawing the mop is avoided.

By connecting the levers n with the shaft I, through the medium of theadjustable arms on, the device can be readily adjusted for mops ofdifferent sizes. The adjustment should be so made relatively to the sizeof the mop that the treadle can be depressed to the base of the pail, soas to derive the benefit of the fullest amount of leverage on thecompressor.

My improvements are very simple in construction, comparatively cheap tomanufacture, and effectual in all respects in the performance of theirfunctions.

Various slight changes might be made in the details of construction ofmy invention without departing from the spirit thereof or limiting itsscope, and hence I do not wish to limit myself to the precise details ofconstruction herein set forth; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a mop wringer, the combination with a pail, of a pivotallysupported compressor plate, a fixed plate cooperating therewith, and asliding compressor plate cooperating with said first-mentioned plates,substal'ltially as set forth.

2. In a mop wringer, the combination with a pail, of a pivotallysupported compressor plate, a sliding compressor plate cooperatingtherewith, and a spring constructed and adapted to return the slidingplate to its normal position, substantially as set forth.

3. In a mop wringer, the combination with a pail, of a pivotallysupported compressor plate, a rigid plate, and a sliding platecooperating therewith, a treadle and a lever connected with the pivotedcompressor plate and cooperating with said treadle, substantially as setforth.

4. In a mop wringer, the combination with a pail, of a pivotedcompressor plate, a sliding compressor plate, and means for moving thepivoted plate causing it to engage the sliding plate and contract thespace between said plates, substantially as set forth.

5. In a mop wringer, the combination with a pail, of a pivotedcompressor plate a rigid plate cooperating therewith, a sliding plate, atreadle and curved levers connected with the pivoted compressor plateand adapted to be engaged by the treadle arms, substantially as setforth.

6. In a mop wringer, the combination with a pail, of two cooperatingcompressor plates and a sliding plate therein, a treadle, and devicesbetween said treadle and one of the compressor plates whereby to causethe move ment of one of said plates toward the other with increasingforce toward the end of the throw of the treadle, substantially as setforth.

'7. In a mop wringer, the combination with a pail, of compressor platestherein, one of said plates being pivotally supported, a treadle, alever connected with the pivoted compressor plate, and a roller carriedby the treadle and adapted to move on and operate said lever to move thepivoted compressor plate as the treadle is depressed,substantially asset forth.

8. In a mop wringer, the combination with a pail, of compressor platestherein, one of said compressor plates being pivotally supported, atreadle, a lever mounted on the shaft of the pivoted compressor plateand adapted to be engaged by the treadle and means for adjustablysecuring said lever to the shaft of said pivoted compressor plate,substantially as set forth.

9. In a mop wringer, the combination with a pail, of compressor platestherein, one of said compressor plates being pivotally supported, atreadle connected to the shaft of said pivoted plate, a pin projectingfrom the arm of the treadle and a roller mounted on said pin and adaptedto run on said lever, substantially as set forth.

10. In a mop wringer, the combination with a pail and a pivotedcompressor plate therein, of an arm secured to the shaft of saidcompressor plate and provided with a series of teeth, a lever looselymounted on said shaft, a securing device connected to said lever andadapted to engage said teeth, and a treadle adapted to engage saidlever, substantially as set forth.

11. In a mop wringer, the combination with a pail having slots thereinand a pivoted compressor plate in said pail, of a sliding oompressorplate adapted to cooperate with the pivoted plate, lugs projecting fromsaid sliding plate through the slots in the pail, and a spring forreturning the sliding plate to its normal position, substantially as setforth.

12. In a mop wringer, the combination with a pail having slots thereinand a pivoted compressor plate, of a sliding compressor plate 00-operating with the pivoted compressor plate, lugs on the sliding plateprojecting through said perforations, and troughs at the lower ends ofsaid slots, substantially as set forth.

13. In a mop wringer, the combination with a pail, of cooperatingcompressor plates therein, one of said plates being pivotally supportedand having a slot therein for the reception of the shank of a mop andthe other compressor plate being constructed and adapted to have asliding movement, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ARTHUR M. BURNHAM.

Witnesses:

A. O. STILPHEN, M. Fos'rER.

